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The idea of Duolingo was formulated in 2009 by Carnegie Mellon University professor Luis von Ahn and his Swiss-born post-graduate student Severin Hacker. Von Ahn had sold his second company, reCAPTCHA… 展开
Duolingo Inc. [b] is an American educational technology company that produces learning apps and provides language certification.Duolingo offers courses on 43 languages, [5] ranging from English, French, and Spanish to less commonly studied languages such as Welsh, Irish, and Navajo, and even constructed languages such as Klingon. [6] It also offers courses on music [7] and math. [8]
了解详细信息：Duolingo Inc. [b] is an American educational technology company that produces learning apps and provides language certification.Duolingo offers courses on 43 languages, [5] ranging from English, French, and Spanish to less commonly studied languages such as Welsh, Irish, and Navajo, and even constructed languages such as Klingon. [6] It also offers courses on music [7] and math. [8]
en.wikipedia.org/wiki/DuolingoFrench (français ⓘ or langue française [lɑ̃ɡ fʁɑ̃sɛːz] ⓘ) is a Romance language of the Indo-European family.Like all other Romance languages, it descended from the Vulgar Latin of the Roman Empire.French evolved from Gallo-Romance, the Latin spoken in Gaul, and more specifically in Northern Gaul.Its closest relatives are the other langues d'oïl—languages historically spoken in ...
en.wikipedia.org/wiki/French_languageFrench language - Wikipedia
17 小时之前 · French (français ⓘ or langue française [lɑ̃ɡ fʁɑ̃sɛːz] ⓘ) is a Romance language of the Indo-European family.Like all other Romance languages, it descended from the Vulgar …
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